The American public relations expert, 41, will be shown leaving the show in tomorrow night's episode, the broadcaster said.

Cheban, a close friend of the controversial Kardashian, is a regular on reality show Keeping Up With The Kardashians, a former PR firm chief executive and founder of luxury lifestyle website TheDishh.com.

A Channel 5 spokesman said: "Jonathan Cheban has decided to leave the Celebrity Big Brother House. His exit will appear in tomorrow night's show on Channel 5 at 9pm."